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Buku Teks
edited by David W. Reed
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Buku Teks
Ramon Magsaysay
Ramon Magsaysay Center, 1985
Buku Referensi
Orwell, George, 1903-1950, author
Bandung : Bentang, 2004,
Buku Teks
Europa Publications Limited
Europa Publications Limited, 1979
Buku Referensi